ADS has several programs for stock-based payments to employees and non-employee members of its Board of Directors, including stock options and restricted stock. Equity-classified restricted stock awards are measured based on the grant-date estimated fair value of each award. The Company accounts for all restricted stock granted to Directors as equity-classified awards. The Company recognized stock-based compensation expense in the following line items of the Condensed Consolidated Statements of Operations for the three months ended June 30, 2019 and 2018:

	Three Months Ended June 30,
	2019		2018
	(In thousands)
Component of income before income taxes:
Cost of goods sold	$	112	$	62
Selling expenses		56		36
General and administrative expenses		1,673		1,461
Total stock-based compensation expense	$	1,841	$	1,559

The following table summarizes stock-based compensation expense by award type for the three months ended June 30, 2019 and 2018:

	Three Months Ended June 30,
	2019		2018
	(In thousands)
Stock-based compensation expense:
Equity-classified Stock Options	$	551	$	773
Restricted Stock		642		543
Performance Units		372		—
Non-Employee Directors		276		243
Total stock-based compensation expense	$	1,841	$	1,559

On May 24, 2017, the Board of Directors approved the 2017 Omnibus Incentive Plan (the “2017 Incentive Plan”) which was approved by the Company’s stockholders on July 17, 2017. The 2017 Incentive Plan provides for the issuance of a maximum of 3.5 million shares of the Company’s common stock for awards made thereunder, which awards may consist of stock options, restricted stock, restricted stock units, stock appreciation rights, phantom stock, cash-based awards, performance awards (which may take the form of performance cash, performance units or performance shares) or other stock-based awards.

Restricted Stock - During the three months ended June 30, 2019, the Company granted 0.1 million shares of restricted stock with a grant date fair value of $3.3 million.

Performance Units - In addition, during the three months ended June 30, 2019, the Company granted 0.1 million performance units, subject to performance and services conditions. The grant date fair value of the performance units was $3.4 million, based on the market price of the Company’s common stock at the date of the grant. For the performance units, 50% of the award is based upon the achievement of certain levels of Return on Invested Capital for the performance period and 50% is based upon the achievement of certain levels of Free Cash Flow for the performance period. The performance units have a 3-year performance period from April 1, 2019 through March 31, 2022. The performance units, and any accrued dividend equivalents, will be settled in shares of the Company’s common stock, if the applicable performance and service conditions are satisfied.

Options - During the three months ended June 30, 2019, the Company granted 0.3 million nonqualified stock options under the 2017 Incentive Plan. The grant date fair value of the nonqualified stock options was $2.7 million. The Company estimates the fair value of stock options using a Black-Scholes option-pricing model. The following table summarizes the assumptions used in estimate the fair value of stock-options during the three months ended June 30, 2019:

		Three Months Ended June 30,
Common stock price		$27.44
Expected stock price volatility		30.9%
Risk-free interest rate		2.3%
Weighted-average expected option life (years)		6.0
Dividend yield		1.3%